It sounds more like muffled crashing of trains or...or something to him. Something. Something heavy. He himself feels heavy, too, but he can't really tell or think about why.

(Bullets, Manabu. It's bullets in your back.)

He gets pushed away by the person he'd fallen on, given a chance to see an odd angle of the beatdown Riptide's giving that walker. It looks weirdly theatric? Confusing.

"Kuh--" Ow. He turns his head and sees one of the not-so-lucky ones he'd been running with, feeling a dread much more potent than gunshots. He isn't left alone to wonder on it, though, because scrambling arms appear to try and yank him up.

That pain trumps the dread.